In AVR32 Studio, fuse settings are stored in files that are a part of a project. You can create a new fuse setting by using the Fuse Settings wizard. The wizard can be found in the File -> New menu or by right clicking in the Navigator or C/C++ Explorer views.
You must first select the project where file should be placed, then type in the name of the file. The name must end with ".fuses". The next step is to select which MCU to create fuse settings for.
The fuse settings may very different from part to part so the editor view user interface will change accordingly. However it will still behave as a normal editor, so Ctrl+S (depending on your keyboard layout) will work for saving the file, etc.
Fuse settings can be applied in three ways; either by dragging a fuse file on top of a target in the targets view, by means of a launch configuration, or by using the target context menu. Similarily the fuse values can be read by dragging a target to an open fuse file editor or by using the target context menu.